title: Columnar transmitter based wireless power delivery system for implantable device in freely moving animals.
abstract: A wireless power delivery system is developed to deliver electrical power to the neuroprosthetic devices that are implanted into animals freely moving inside the cage. The wireless powering cage is designed for long-term animal experiments without cumbersome wires for power supply or the replacement of batteries. In the present study, we propose a novel wireless power transmission system using resonator-based inductive links to increase power efficiency and to minimize the efficiency variations. A columnar transmitter coil is proposed to provide lateral uniformity of power efficiency. Using this columnar transmitter coil, only 7.2% efficiency fluctuation occurs from the maximum transmission efficiency of 25.9%. A flexible polymer-based planar type receiver coil is fabricated and assembled with a neural stimulator and an electrode. Using the designed columnar transmitter coil, the implantable device successfully operates while it moves freely inside the cage.
authors.forename: Kyungsik
authors.initials: K
authors.lastname: Eom
authors.forename: Joonsoo
authors.initials: J
authors.lastname: Jeong
authors.forename: Tae Hyung
authors.initials: TH
authors.lastname: Lee
authors.forename: Sung Eun
authors.initials: SE
authors.lastname: Lee
authors.forename: Sang Bum
authors.initials: SB
authors.lastname: Jun
authors.forename: Sung June
authors.initials: SJ
authors.lastname: Kim
mesh_terms: D000465:Algorithms; D000669:Amplifiers, Electronic; D000818:Animals; D011211:Electric Power Supplies; D004560:Electricity; D004566:Electrodes; D004867:Equipment Design; D008027:Light; D051379:Mice; D011108:Polymers; D019736:Prostheses and Implants; D011474:Prosthesis Design; D011846:Radio Waves; D051381:Rats; D012815:Signal Processing, Computer-Assisted; D012984:Software; D059015:Wireless Technology
chemical_list: D011108:Polymers